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Rejoyn Medical Systems

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Pos T Vac Support Ring Comparison Chart

The Support Rings to be used with your Pos-T-Vac system come in various styles and sizes.  We have created the chart below to help you determine which size of support Ring is right for you.  The Support Rings sizes depend on the amount of tension the individual user needs to maintain an erection, the size is not based on physical dimensions.  

Each of our Complete Pos-T-Vac Systems includes the Ultimate II Round Rings, Sizes 1-3.  We suggest trying the Support Rings that came with your system to determine the correct amount of tension for you.  Once you know the tension level that provides you the best support try the different styles of Support Rings we offer and find your favorite!


Your therapy has turned out to be a true blessing. My wife and I have been more than surprised and grateful for your remedy for solving a serious problem. 

- R. Martin, Iowa